112 lines
3.2 KiB
Python
112 lines
3.2 KiB
Python
# Part of rabbitears See LICENSE for permissions
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# Copyright (C) 2022 Matt Arnold
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import socket
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import sys
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import irctokens
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import time
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class IRCBadMessage(Exception):
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pass
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class IRCError(Exception):
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pass
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def printred(s):
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t = f"\033[1;31m {s} \033[0m\n"
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print(t)
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def parsemsg(s):
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"""Breaks a message from an IRC server into its prefix, command, and arguments.
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"""
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prefix = ''
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trailing = []
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if not s:
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raise IRCBadMessage("Empty line.")
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if s[0] == ':':
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prefix, s = s[1:].split(' ', 1)
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if s.find(' :') != -1:
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s, trailing = s.split(' :', 1)
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args = s.split()
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args.append(trailing)
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else:
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args = s.split()
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command = args.pop(0)
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return prefix, command, args
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LINEEND = '\r\n'
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class IRCBot:
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irc = None
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def __init__(self, sock, config=None):
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self.irc = sock
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self.connected = False
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self.config = config
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def send_cmd(self, line):
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"""Send an IRC Command, takes an IRC command string without the CRLF
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Returns encoded msg on success raises IRCError on failure """
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if not self.connected:
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raise IRCError("Not Connected")
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encmsg = bytes(line.format() + LINEEND, 'UTF-8' )
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expected = len(encmsg)
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if self.irc.send(encmsg) == expected:
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return str(encmsg)
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else:
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raise IRCError("Unexpected Send Length")
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def on_welcome(self, *args, **kwargs):
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authmsg = irctokens.build("NICKSERV", ['IDENTIFY', self.config['nickpass']])
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self.send_cmd(authmsg)
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joinmsg = irctokens.build("JOIN", [self.config['channel']])
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self.send_cmd(joinmsg)
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def send_privmsg(self, dst, msg):
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msg = irctokens.build("PRIVMSG",[dst, msg])
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self.send_cmd(msg)
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def send_quit(self, quitmsg):
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msg = irctokens.build("QUIT", [quitmsg])
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print(msg)
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self.send_cmd(msg)
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def send_action(self, action_msg, dst):
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pass
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def connect(self, server, port, channel, botnick, botnickpass):
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if self.config is None:
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self.config = {}
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self.config["hostname"] = server
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self.config["port"] = port
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self.config["nick"] = botnick
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self.config["channel"] = channel
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self.config["nickpass"] = botnickpass
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print("Connecting to: " + server)
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self.irc.connect((self.config["hostname"], self.config["port"]))
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self.connected = True
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# Perform user registration
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usermsg = irctokens.build("USER", [botnick, "0","*", "RabbitEars Bot"]).format()
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print(usermsg)
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self.send_cmd(usermsg)
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nickmsg = irctokens.build("NICK", [botnick])
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self.send_cmd(nickmsg)
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def get_response(self):
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# Get the response
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resp = self.irc.recv(4096).decode("UTF-8")
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msg = parsemsg(resp)
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nwmsg = irctokens.tokenise(resp)
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printred(nwmsg.command)
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if nwmsg.command == "001":
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self.on_welcome(nwmsg.params)
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if nwmsg.command == "ERROR":
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raise IRCError(str(nwmsg.params[0]))
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if nwmsg.command == 'PING':
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print('Sending pong')
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self.irc.send(
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bytes('PONG ' + LINEEND, "UTF-8"))
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return msg
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